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Finding the Fourth Proportional to 1,966.55, 2,950.43 and 1,100.25

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Solution

The fourth proportional to 1,966.55, 2,950.43 and 1,100.25 is: 1,650.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.55 : 2,950.43 = 1,100.25 : x
  2. Step 2: Convert to fraction form
    1,966.55/2,950.43 = 1,100.25/x
  3. Step 3: Cross multiply
    1,966.55x = 2,950.43 × 1,100.25
  4. Step 4: Simplify right side
    1,966.55x = 3,246,205.11
  5. Step 5: Solve for x
    x = 3,246,205.11/1,966.55
  6. Step 6: Final answer
    x = 1,650.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.